Photo 1 of LB4000 Replacement Bulb Compatible with Germ Guardian AC4825 AC4850PT AC4300BPTCA AC4300BPT AC4850 AC4900 AC4900CA AC4800 AC4900 Purifiers Replace 5W UV-C Bulb(2 Packs)

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Photo 1 of LB4000 Replacement Bulb Compatible with Germ Guardian AC4825 AC4850PT AC4300BPTCA AC4300BPT AC4850 AC4900 AC4900CA AC4800 AC4900 Purifiers Replace 5W UV-C Bulb(2 Packs)